[3.15] Query Params "Aliasing" Broken

[jherdman]

As discussed in the guides one can map a query parameter to a different value on their controller. This appears to be broken in Ember 3.15.

Reproduction app: https://github.com/jherdman/query-params-sadness

• Second commit "Aliasing: Broken". Click the links, note that the query parameter does not change. Setting the query parameter p manually does not work either.
• Third commit: "Work Around". Current work around I'm using, though this does not handle default values at all.

[iamdtang]

I checked out the second commit and it works if queryParams is an array, like this:

queryParams = [{
  'pancake': 'p'
}];

[broerse]

It works for in 3.16.2 like this: https://github.com/broerse/ember-cli-blog/blob/master/app/controllers/posts.js#L17